Article(id=1322942223448421073, tenantId=1146029695717560320, journalId=1322258508890079423, issueId=1322942002035295141, articleNumber=null, orderNo=null, doi=10.13809/j.cnki.cn32-1825/te.20250030, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1768233600000, receivedDateStr=2026-01-13, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793343605148, onlineDateStr=2026-10-30, pubDate=1790352000000, pubDateStr=2026-09-26, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793343605148, onlineIssueDateStr=2026-10-30, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793343605148, creator=13701087609, updateTime=1793343605148, updator=13701087609, issue=Issue{id=1322942002035295141, tenantId=1146029695717560320, journalId=1322258508890079423, year='2026', volume='16', issue='5', pageStart='949', pageEnd='1136', issueExtLink='null', onlineDate='null', pubDate='1790352000000', pubDateStr='2026-09-26', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793343552359, creator='13701087609', updateTime=1793344212649, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322944771945267389, tenantId=1146029695717560320, journalId=1322258508890079423, issueId=1322942002035295141, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322944771945267390, tenantId=1146029695717560320, journalId=1322258508890079423, issueId=1322942002035295141, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=963, endPage=973, ext={EN=ArticleExt(id=1322942223687496402, articleId=1322942223448421073, tenantId=1146029695717560320, journalId=1322258508890079423, language=EN, title=Practice of integrated geology-engineering efficient development technology of coal-rock gas: a case study of the Jiaxian block in Ordos Basin, columnId=1322941556788953582, journalTitle=Petroleum Reservoir Evaluation and Development, columnName=Specialist Forum, runingTitle=null, highlight=
In view of the difficulties in the geological engineering “sweet spot” of coal-rock gas development in Jiaxian block of Ordos Basin, such as unclear fine evaluation, difficult fine control of drilling trajectory of long horizontal section horizontal well, small space for liquid control, efficiency improvement and cost reduction in large-scale fracturing transformation, and inaccurate control of efficient and economical drainage, the development concept of geological engineering integration has been developed. Through the application practice of development pilot test, the key technology of integrated and efficient development of coal-rock gas with “sweet spot” evaluation, optimal and fast drilling, fracturing transformation and efficient drainage is formed. Based on the integrated “sweet spot” evaluation technology, a three-factor and 12-item evaluation index system of geological engineering economy in the developed “sweet spot” is established. Based on the mud logging data while drilling, the identification standard of black gold target is established to support the development of selected areas and the deployment and implementation of horizontal wells. By optimizing the wellbore structure, optimizing the high-efficiency speed-up tools, and adopting the integrated guidance technology of seismic geology and engineering, the optimal and fast drilling of large well cluster horizontal wells in factory is realized, and the drilling rate of coal rock is guaranteed to be more than 98%. The integrated fracturing technology system of geological engineering with “high displacement + moderate scale + complex fracture network + multi-scale support” as the core is formed, and the ultra-low pre-liquid controlled hydraulic fracturing technology and few cluster long fracture fracturing technology are explored, which further improves the pertinence and economy of coal rock gas fracturing transformation. A full-cycle integrated drainage technology system of “initial oil control pressure self-flowing, medium-term auxiliary bubble drainage + gas lift, and later artificial lifting” has been formed to improve the drainage and gas recovery efficiency of coal-rock gas wells. Practice shows that the integrated and efficient development technology of coal, rock and gas has realized the deep integration of geological engineering, formed the closed-loop optimization of the whole development cycle, reduced the development cost and realized the scale benefit development of coal, rock and gas while ensuring the drilling effect and production effect of single well.
, articleAbstract=null, authors=CHENGLIN YU, LIMIN MA, YANGYANG YU, BO XU, PENG CONG, JINGXU YANG, YUNZI LI, SHUANGLIANG WU, WEI SONG, authorsList=CHENGLIN YU, LIMIN MA, YANGYANG YU, BO XU, PENG CONG, JINGXU YANG, YUNZI LI, SHUANGLIANG WU, WEI SONG, authorCompany=null, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1322942228632580833, articleId=1322942223448421073, tenantId=1146029695717560320, journalId=1322258508890079423, language=CN, title=煤岩气地质工程一体化高效开发技术实践——以鄂尔多斯盆地佳县区块为例, columnId=1322941557069971952, journalTitle=油气藏评价与开发, columnName=专家论坛, runingTitle=null, highlight=
针对鄂尔多斯盆地佳县区块煤岩气开发地质工程“甜点”精细评价不清、长水平段水平井钻井轨迹精细控制难度大、大规模压裂改造控液提效降本空间有限、高效经济排采调控不足等难点，坚持地质工程一体化开发理念，通过开发先导试验与应用实践，构建了以“甜点”评价、优快钻井、压裂改造、高效排采为核心的煤岩气一体化高效开发关键技术体系。应用一体化“甜点”评价技术，建立开发“甜点”区地质工程经济三因素12项评价指标体系，并基于随钻录井数据建立黑金靶体判识标准，为开发选区和水平井部署实施提供支撑；通过优化井身结构、优选高效提速工具，采用地震地质工程一体化导向技术，实现工厂化大井丛水平井优快钻井，保障煤岩钻遇率达98%以上。攻关形成以“高排量+适度规模+复杂缝网+多尺度支撑”为核心的地质工程一体化压裂技术体系，探索应用超低前置液控水压裂技术与少簇长缝压裂技术，进一步提升煤岩气压裂改造的针对性与经济性；构建“初期油管控压自喷、中期辅助泡排+气举、后期人工举升”全周期一体化排采技术体系，有效提高煤岩气井排水采气效率。现场实践表明，该一体化高效开发技术实现地质与工程的深度融合，形成全开发周期闭环优化模式，在保障单井钻探及生产效果的同时，显著降低开发成本，助力佳县区块实现煤岩气规模效益开发。
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余成林（1979—），男，博士，高级工程师，从事油气藏开发综合研究与管理工作。地址：河北省唐山市路北区新华西道101号，邮政编码：063000。E-mail： yuchenglin2014@petrochina.com.cn
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余成林（1979—），男，博士，高级工程师，从事油气藏开发综合研究与管理工作。地址：河北省唐山市路北区新华西道101号，邮政编码：063000。E-mail： yuchenglin2014@petrochina.com.cn
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41(5): 612-617., articleTitle=Division of coalbed methane desorption stages and its significance, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1322942229056205538, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942223448421073, xref=null, ext=[AuthorCompanyExt(id=1322942229068788451, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942223448421073, companyId=1322942229056205538, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=PetroChina Jidong Oilfield Company, Tangshan, Hebei 063000, China), AuthorCompanyExt(id=1322942229081371364, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942223448421073, companyId=1322942229056205538, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=中国石油冀东油田公司，河北 唐山 063000)])], figs=[ArticleFig(id=1322942236375266081, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942223448421073, language=EN, label=Fig.1, caption=
Location and stratigraphic column of Jiaxian block, Ordos Basin, figureFileSmall=20xaZTP3/V7PYXZzwnRSpg==, figureFileBig=Gh6nGDr8UHkzvvfz4x64qA==, tableContent=null), ArticleFig(id=1322942236450763554, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942223448421073, language=CN, label=图1, caption=
鄂尔多斯盆地佳县区块构造位置及沉积地层特征, figureFileSmall=20xaZTP3/V7PYXZzwnRSpg==, figureFileBig=Gh6nGDr8UHkzvvfz4x64qA==, tableContent=null), ArticleFig(id=1322942236698227491, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942223448421073, language=EN, label=Fig.2, caption=
Comprehensive bar chart of typical well No.8 coal seam in Jiaxian block, Ordos Basin, figureFileSmall=wlyhp6fu49QuvJa6M1B9AA==, figureFileBig=zqo60HJX58aqMW159uQefg==, tableContent=null), ArticleFig(id=1322942236761142052, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942223448421073, language=CN, label=图2, caption=
鄂尔多斯盆地佳县区块典型井8号煤综合柱状图, figureFileSmall=wlyhp6fu49QuvJa6M1B9AA==, figureFileBig=zqo60HJX58aqMW159uQefg==, tableContent=null), ArticleFig(id=1322942236845028133, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942223448421073, language=EN, label=Fig. 3, caption=
Schematic diagram of horizontal well casing structure before and after optimization, figureFileSmall=s7T34p6gWkBp7e9+svNbvw==, figureFileBig=yKjC6rG7j73esJSGnAmquA==, tableContent=null), ArticleFig(id=1322942236937302822, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942223448421073, language=CN, label=图3, caption=
水平井井身结构优化前后示意图, figureFileSmall=s7T34p6gWkBp7e9+svNbvw==, figureFileBig=yKjC6rG7j73esJSGnAmquA==, tableContent=null), ArticleFig(id=1322942237012800295, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942223448421073, language=EN, label=Fig.4, caption=
Segment by segment guided drilling with dynamic control points established based on seismic, geological and engineering integration, figureFileSmall=GPYWURCAgNiztDNkm1QINg==, figureFileBig=Fezgc/IX8NVBVfGNjDueKw==, tableContent=null), ArticleFig(id=1322942237092492072, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942223448421073, language=CN, label=图4, caption=
地震地质工程一体化动态控制点逐段引导钻进, figureFileSmall=GPYWURCAgNiztDNkm1QINg==, figureFileBig=Fezgc/IX8NVBVfGNjDueKw==, tableContent=null), ArticleFig(id=1322942237176378153, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942223448421073, language=EN, label=Fig.5, caption=
Comparison of fracture propagation morphology between conventional fracturing and less cluster long fracture fracturing, figureFileSmall=VXz8RIaUM7jEg3t3CyXRBw==, figureFileBig=lNLertoe3GS2KHJED+ibVw==, tableContent=null), ArticleFig(id=1322942237247681322, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942223448421073, language=CN, label=图5, caption=
常规压裂与少簇长缝压裂裂缝扩展形态对比, figureFileSmall=VXz8RIaUM7jEg3t3CyXRBw==, figureFileBig=lNLertoe3GS2KHJED+ibVw==, tableContent=null), ArticleFig(id=1322942237323178795, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942223448421073, language=EN, label=Fig.6, caption=
Schematic diagram of production stage division of coal-rock gas well, figureFileSmall=99jAtsIampbhxtQd0d4f/g==, figureFileBig=sITYmTmzZshtr7NPAVzyiA==, tableContent=null), ArticleFig(id=1322942237407064876, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942223448421073, language=CN, label=图6, caption=
煤岩气井生产阶段示意图, figureFileSmall=99jAtsIampbhxtQd0d4f/g==, figureFileBig=sITYmTmzZshtr7NPAVzyiA==, tableContent=null), ArticleFig(id=1322942237474173741, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942223448421073, language=EN, label=Table 1, caption=
Evaluation parameters of coal-rock gas “sweet spot” of Jiaxian block，Ordos Basin, figureFileSmall=null, figureFileBig=null, tableContent=
| 评价参数 | Ⅰ类“甜点”区 | Ⅱ类“甜点”区 | Ⅲ类区 |
|---|
| 地质条件 | 煤岩厚度/m | ≥7 | 5~<7 | <5 |
| 煤层结构 | 夹矸不发育，整装型 | 单层夹矸厚度小于1 m | 单层或多层夹矸，夹矸厚度＞1 m |
| 构造条件 | 地层平缓、构造简单，倾角小于2° | 构造复杂，地层倾角大于2° | 构造复杂，地层倾角大于2° |
| 顶板岩性 | 灰岩、泥岩 | 灰岩、泥岩 | 砂岩 |
| 底板岩性 | 灰岩、泥岩 | 灰岩、泥岩 | 砂岩 |
| 含气量/（m³/t） | ≥22 | 19~<22 | 16~<19 |
| 资源丰度/（108 m3/km2） | ≥2.0 | 1.5~<2.0 | <1.5 |
| 工程条件 | 裂缝发育情况 | 裂缝较发育 | 裂缝相对发育 | 裂缝不发育 |
| 煤岩与顶底板应力差/MPa | ≥6 | <6 | <6 |
| 水平两向主应力差/MPa | <4 | ≥4 | ≥4 |
| 脆性指数/% | ≥50 | 40~<50 | <40 |
| 经济条件 | 内部收益率/% | ≥12 | 6~<12 | <6 |
), ArticleFig(id=1322942237587419950, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942223448421073, language=CN, label=表1, caption=
鄂尔多斯盆地佳县区块煤岩气“甜点”评价参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 评价参数 | Ⅰ类“甜点”区 | Ⅱ类“甜点”区 | Ⅲ类区 |
|---|
| 地质条件 | 煤岩厚度/m | ≥7 | 5~<7 | <5 |
| 煤层结构 | 夹矸不发育，整装型 | 单层夹矸厚度小于1 m | 单层或多层夹矸，夹矸厚度＞1 m |
| 构造条件 | 地层平缓、构造简单，倾角小于2° | 构造复杂，地层倾角大于2° | 构造复杂，地层倾角大于2° |
| 顶板岩性 | 灰岩、泥岩 | 灰岩、泥岩 | 砂岩 |
| 底板岩性 | 灰岩、泥岩 | 灰岩、泥岩 | 砂岩 |
| 含气量/（m³/t） | ≥22 | 19~<22 | 16~<19 |
| 资源丰度/（108 m3/km2） | ≥2.0 | 1.5~<2.0 | <1.5 |
| 工程条件 | 裂缝发育情况 | 裂缝较发育 | 裂缝相对发育 | 裂缝不发育 |
| 煤岩与顶底板应力差/MPa | ≥6 | <6 | <6 |
| 水平两向主应力差/MPa | <4 | ≥4 | ≥4 |
| 脆性指数/% | ≥50 | 40~<50 | <40 |
| 经济条件 | 内部收益率/% | ≥12 | 6~<12 | <6 |
), ArticleFig(id=1322942237675500335, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942223448421073, language=EN, label=Table 2, caption=
Difficulty of drilling speed increase in each well section of horizontal well and the principle of PDC bit selection, figureFileSmall=null, figureFileBig=null, tableContent=
| 开次 | 提速难点 | PDC钻头选型原则 |
|---|
| 二开 | 刘家沟组地层抗压强度高达120~180 MPa，具有较强的冲击性和研磨性 | 子弹头攻击性冠型设计，提升钻头攻击性 开放式三主刀翼设计，兼顾工具面稳定和提升机速 抗冲击型动态组合式布齿，动态设置切削齿吃入地层能力，提升钻头生命力 采用高压低钴综合性能优异的加厚型复合片，减缓机速衰减，提升寿命 |
| 三开定向段 | 太原组灰岩硬度高，抗压强度达200 MPa以上，钻齿无法有效侵入地层，且灰岩所夹泥煤砂较软（抗压强度仅10 MPa），对抗冲击性有较高要求 | 强定向冠型设计，强攻击性设计 差异攻击性设计，强侧向攻击性，提升滑动、复合增斜率，减少滑动比例 抗冲击型动态组合式布齿，提升对前排齿的保护 |
| 三开水平段 | 煤层可钻性较好，煤层稳定性较差 | 轴强侧弱的差异攻击性设计 高布齿密度，细化煤层岩屑 小角度水力结构 |
), ArticleFig(id=1322942237763580720, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942223448421073, language=CN, label=表2, caption=
水平井各井段钻井提速难点及PDC钻头选型原则
, figureFileSmall=null, figureFileBig=null, tableContent=
| 开次 | 提速难点 | PDC钻头选型原则 |
|---|
| 二开 | 刘家沟组地层抗压强度高达120~180 MPa，具有较强的冲击性和研磨性 | 子弹头攻击性冠型设计，提升钻头攻击性 开放式三主刀翼设计，兼顾工具面稳定和提升机速 抗冲击型动态组合式布齿，动态设置切削齿吃入地层能力，提升钻头生命力 采用高压低钴综合性能优异的加厚型复合片，减缓机速衰减，提升寿命 |
| 三开定向段 | 太原组灰岩硬度高，抗压强度达200 MPa以上，钻齿无法有效侵入地层，且灰岩所夹泥煤砂较软（抗压强度仅10 MPa），对抗冲击性有较高要求 | 强定向冠型设计，强攻击性设计 差异攻击性设计，强侧向攻击性，提升滑动、复合增斜率，减少滑动比例 抗冲击型动态组合式布齿，提升对前排齿的保护 |
| 三开水平段 | 煤层可钻性较好，煤层稳定性较差 | 轴强侧弱的差异攻击性设计 高布齿密度，细化煤层岩屑 小角度水力结构 |
), ArticleFig(id=1322942237851661105, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942223448421073, language=EN, label=Table 3, caption=
Drilling parameters of different sections of coal-rock gas horizontal well, figureFileSmall=null, figureFileBig=null, tableContent=
| 阶段 | 二开 | 三开上部井段 | 三开水平段 |
|---|
钻压/ kN | 转速/(r/min) | 排量/ (L/s) | 泵压/ MPa | 钻压/ kN | 转速/(r/min) | 排量/ (L/s) | 泵压/ MPa | 钻压/ kN | 转速/(r/min) | 排量/ (L/s) | 泵压/ MPa |
|---|
| 预探 | 60~100 | 50 | 48~52 | 13~15 | 80~120 | 55 | 30 | 16~18 | 20~30 | 50 | 31 | 18~20 |
先导 试验 | 80~120 | 60 | 50~52 | 14~16 | 100~120 | 65 | 32 | 17~21 | 30~50 | 50 | 32 | 19~21 |
), ArticleFig(id=1322942237960713010, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942223448421073, language=CN, label=表3, caption=
煤岩气水平井不同井段钻井参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 阶段 | 二开 | 三开上部井段 | 三开水平段 |
|---|
钻压/ kN | 转速/(r/min) | 排量/ (L/s) | 泵压/ MPa | 钻压/ kN | 转速/(r/min) | 排量/ (L/s) | 泵压/ MPa | 钻压/ kN | 转速/(r/min) | 排量/ (L/s) | 泵压/ MPa |
|---|
| 预探 | 60~100 | 50 | 48~52 | 13~15 | 80~120 | 55 | 30 | 16~18 | 20~30 | 50 | 31 | 18~20 |
先导 试验 | 80~120 | 60 | 50~52 | 14~16 | 100~120 | 65 | 32 | 17~21 | 30~50 | 50 | 32 | 19~21 |
), ArticleFig(id=1322942238040404787, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942223448421073, language=EN, label=Table 4, caption=
Integrated fracturing technology of coal-rock gas horizontal well in Jiaxian block，Ordos Basin, figureFileSmall=null, figureFileBig=null, tableContent=
| 技术要点 | 技术内涵及目标 |
|---|
| 差异化设计 | Ⅰ、Ⅱ类层最大化动用；Ⅲ类层优势改造 |
| 段内少簇布缝 | 降低缝间干扰、提高起裂效率；保障单孔流量，提高单缝净压力 |
| 高低黏交替注液 | 多频次变黏度实现应力循环加载，促进割理持续开启 |
| 多级宽带压裂 | 利用支撑剂暂堵和应力重定向，促进裂缝转向，实现强支撑 |
| 多粒径组合支撑剂 | 降低支撑剂嵌入，实现缝网全域支撑 |
| 低伤害压裂液 | 降低分子量减少吸附，满足高排量压裂低摩阻、高携砂需求 |
| 水平定向射孔 | 抑制煤粉与支撑剂在重力的作用下返出，有效控制缝高 |
), ArticleFig(id=1322942238107513652, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942223448421073, language=CN, label=表4, caption=
鄂尔多斯盆地佳县区块煤岩气水平井一体化压裂改造技术
, figureFileSmall=null, figureFileBig=null, tableContent=
| 技术要点 | 技术内涵及目标 |
|---|
| 差异化设计 | Ⅰ、Ⅱ类层最大化动用；Ⅲ类层优势改造 |
| 段内少簇布缝 | 降低缝间干扰、提高起裂效率；保障单孔流量，提高单缝净压力 |
| 高低黏交替注液 | 多频次变黏度实现应力循环加载，促进割理持续开启 |
| 多级宽带压裂 | 利用支撑剂暂堵和应力重定向，促进裂缝转向，实现强支撑 |
| 多粒径组合支撑剂 | 降低支撑剂嵌入，实现缝网全域支撑 |
| 低伤害压裂液 | 降低分子量减少吸附，满足高排量压裂低摩阻、高携砂需求 |
| 水平定向射孔 | 抑制煤粉与支撑剂在重力的作用下返出，有效控制缝高 |
), ArticleFig(id=1322942238187205429, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942223448421073, language=EN, label=Table 5, caption=
Full life cycle drainage technology of coal-rock gas well, figureFileSmall=null, figureFileBig=null, tableContent=
| 排采阶段 | 快速返排 | 降液高产 | 控压稳产 | 控压递减 | 低压低产 |
|---|
| 排采工艺 | 套管敞放 | 油管自喷生产 | 油管自喷生产 | 机抽生产 | 负压抽采生产 |
| 生产制度 | 小油嘴 控制返排速度 | 油嘴逐级放大 | 调整油嘴 保持控压生产 | 机抽生产，减缓压降速率 | 负压抽采，尽可能保持地层压力 |
), ArticleFig(id=1322942238262702902, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942223448421073, language=CN, label=表5, caption=
煤岩气井全生命周期排采工艺
, figureFileSmall=null, figureFileBig=null, tableContent=
| 排采阶段 | 快速返排 | 降液高产 | 控压稳产 | 控压递减 | 低压低产 |
|---|
| 排采工艺 | 套管敞放 | 油管自喷生产 | 油管自喷生产 | 机抽生产 | 负压抽采生产 |
| 生产制度 | 小油嘴 控制返排速度 | 油嘴逐级放大 | 调整油嘴 保持控压生产 | 机抽生产，减缓压降速率 | 负压抽采，尽可能保持地层压力 |
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