和田河气田玛4区块奥陶系岩溶储集层特征及其对产能的影响

doi:10.7657/XJPG20250504

新疆石油地质 ›› 2025, Vol. 46 ›› Issue (5): 553-559.doi: 10.7657/XJPG20250504

和田河气田玛4区块奥陶系岩溶储集层特征及其对产能的影响

李重月^1a^,^1b(), 徐文圣^1a^,^1b, 韩富强^1a^,^1b, 杨焱^1b^,^1c, 周浪², 张虎^1a^,^1b, 余冰悦³

1.中国石油塔里木油田分公司 a.泽普采油气管理区; b.新疆超深油气重点实验室; c.勘探开发研究院，新疆库尔勒 841000
2.中国石油塔里木油田分公司塔西南天然气处理总厂，新疆喀什 844000
3.西南石油大学地球科学与技术学院，成都 610599

收稿日期:2025-01-21 修回日期:2025-01-26 出版日期:2025-10-01 发布日期:2025-09-30
作者简介:李重月（1982-），男，湖北咸宁人，工程师，石油天然气开发，（Tel）0996-2175392（Email）1462570876@qq.com
基金资助:
中国石油科技专项(2023ZZ16)

Characteristics of Ordovician Karst Reservoirs in Ma 4 Block of Hetianhe Gas Field and Its Influences on Well Productivity

LI Chongyue^1a^,^1b(), XU Wensheng^1a^,^1b, HAN Fuqiang^1a^,^1b, YANG Yan^1b^,^1c, ZHOU Lang², ZHANG Hu^1a^,^1b, YU Bingyue³

1. PetroChina Tarim Oilfield Company, a.Zepu Oil & Gas Recovery Management Area, b.Xinjiang Key Laboratory of Ultra-deep Oil and Gas, c.Research Institute of Exploration & Development, Korla, Xinjiang 841000, China
2. Southwest Tarim Natural Gas Processing Plant, PetroChina Tarim Oilfield Company, Kashi, Xinjiang 841000, China
3. School of Geoscience and Technology, Southwest Petroleum University, Chengdu, Sichuan 610599, China

Received:2025-01-21 Revised:2025-01-26 Online:2025-10-01 Published:2025-09-30

摘要/Abstract

摘要：

奥陶系碳酸盐岩储集层是和田河气田主力开发层系，以玛4区块为例，综合岩心、薄片、测井、钻井及流体资料开展古岩溶特征研究，分析裂缝与古岩溶、充填作用间的相互关系，评价影响气井生产的主要岩溶因素，明确岩溶储集层下步有利挖潜方向。结果表明：垂直渗流带裂缝发育特征不仅与构造特征有关，还与表层岩溶、充填作用有关；气藏底水活跃性与埋藏溶蚀作用有关；岩溶分带性是岩溶储集层具有二元结构的主要原因，裂缝发育区并非水体活跃区，单井生产效果主要取决于埋藏溶蚀作用及垂直渗流带裂缝发育情况2个因素。

关键词: 和田河气田, 玛4区块, 奥陶系, 岩溶储集层, 单井产能, 主控因素

Abstract:

The Ordovician carbonate reservoirs are the main development targets in the Hetianhe gas field. Taking the Ma 4 block as an example, the paleokarst characteristics were investigated based on core, thin section, logging, drilling and fluid data. The relationship between fractures and paleokarstifcaiton or filling was analyzed, the main factors controlling gas well production were evaluated, and the favorable targets for tapping the potential of the karst reservoirs were clarified. The research results show that the characteristics of fracture development in the vertical flow zone are not only related to tectonic characteristics, but also to surface karstification and filling processes. The activity of bottom water in the gas reservoir is related to the burial dissolution. Karst zonation is the main cause for the dual structure of karst reservoirs. The fracture zone is not the active water zone. The production effect of a single well mainly depends on two factors, namely burial dissolution and fracture development in the vertical flow zone.

Key words: Hetianhe gas field, Ma 4 block, Ordovician, karst reservoir, well productivity, main controlling factor

中图分类号:

T122.23

李重月, 徐文圣, 韩富强, 杨焱, 周浪, 张虎, 余冰悦. 和田河气田玛4区块奥陶系岩溶储集层特征及其对产能的影响[J]. 新疆石油地质, 2025, 46(5): 553-559.

LI Chongyue, XU Wensheng, HAN Fuqiang, YANG Yan, ZHOU Lang, ZHANG Hu, YU Bingyue. Characteristics of Ordovician Karst Reservoirs in Ma 4 Block of Hetianhe Gas Field and Its Influences on Well Productivity[J]. Xinjiang Petroleum Geology, 2025, 46(5): 553-559.

图/表 7

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井名	附近古溶洞发育井	古溶洞高度/m	漏失井与古溶洞垂直距离/m	钻井液相对密度	漏失量/ m³	设计水平段长度/m	实钻水平段长度/m	堵漏情况
玛5-4H井	玛5井	34.6	98.3	1.14~1.20	4 447	600	409	无法堵漏
玛5-6H井	玛5井	34.6	51.0	1.12~1.28	5 263	600	62
玛5-8H井	玛5井	34.6	72.0	1.04~1.30	2 262	600	205
玛4-8H井	玛4-10H井	63.4	199.0	1.12~1.18	3 247	600	600	堵漏仍可钻进
玛4-H4井	玛4井	10.2	96.0	1.06~1.27	10 485	600	600
玛4-H2井	玛4-H2井	23.7	159.0	1.24~1.27	2 687	500	500

构造位置	井名	层位	避水高度/m	硫化氢浓度/ （mg·m^-3）	奥陶系钻井液漏失量/m³	储集层特征	日产水量/ t	日产气量/ m³	累计产水量/10⁴ t	累计产气量/10⁸ m³
玛5井区	玛5井	奥陶系	69	5 928.01	0	裂缝不发育，埋藏溶蚀作用强	37.32	13 542	2.1	1.0
	玛5-4H井	奥陶系	290	6 087.06	4 447.53	裂缝发育，埋藏溶蚀作用强	0	0	2.1	1.1
	玛5-6H井	奥陶系	242	6 327.44	5 263.64	裂缝发育，埋藏溶蚀作用强	0	0	0.1	1.0
	玛5-8H井	奥陶系	262	6 968.38	2 262.20	裂缝发育，埋藏溶蚀作用强	0	0	1.5	0.8
岩溶残丘鞍部	玛4-10H井	石炭系	368	427.49	0	裂缝不发育，桑塔木组泥岩遮挡	0.91	83 899	0.2	5.0
	玛5-2H井	石炭系	157	201.35	31.60	裂缝不发育，桑塔木组泥岩遮挡	0.16	18 010	0.1	2.4
	玛401井	石炭系、奥陶系	121	1 053.49	0	裂缝不发育，桑塔木组泥岩遮挡	44.49	0	0.8	0
玛4井区西部	玛4-8H井	奥陶系	325	2 093.17	3 231.57	裂缝发育，埋藏溶蚀作用中等	158.64	0	12.0	1.8
	玛4-H6井	奥陶系	330	987.98	24.00	裂缝不发育，埋藏溶蚀作用中等	4.52	64 599	1.0	4.0
	玛4-12H井	石炭系	326	223.75	169.00	裂缝不发育，埋藏溶蚀作用中等	0	0	3.0	2.3
玛4井区中部	玛4-H4井	石炭系	272	47.04	10 484.98	裂缝发育，埋藏溶蚀作用中等	0	0	1.8	2.1
玛4井区东部	玛4-H2井	奥陶系	215	8.01	2 687.50	裂缝发育，埋藏溶蚀作用弱	3.45	72 266	0.3	6.2
玛4井区东部	玛4-B2H井	奥陶系	205	9.33	0	裂缝不发育，埋藏溶蚀作用弱	1.06	16 967	0.9	2.2

和田河气田玛4区块奥陶系岩溶储集层特征及其对产能的影响

Characteristics of Ordovician Karst Reservoirs in Ma 4 Block of Hetianhe Gas Field and Its Influences on Well Productivity

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