强非均质性气藏压裂水平井分段产量劈分新方法——以鄂尔多斯盆地东胜气田二叠系盒1段气藏为例

doi:10.12108/yxyqc.20260117

Lithologic Reservoirs ›› 2026, Vol. 38 ›› Issue (1): 191-200.doi: 10.12108/yxyqc.20260117

• PETROLEUM ENGINEERING AND OIL & GAS FIELD DEVELOPMENT • Previous Articles

A new method for splitting the production of fractured horizontal wells in strong heterogeneous gas reservoirs:Taking Permian He1 member gas reservoir in Dongsheng Gasfield of Ordos Basin as an example

XUN Xiaoquan¹(), LI Hongtao², LI Changping¹, YANG Fan¹, LIU Xiong³

¹ Research Institute of Exploration and Development， Sinopec North China Oil & Gas Branch， Zhengzhou 450006, China
² Sinopec Petroleum Exploration and Development Research Institute, Beijing 102206, China
³ School of Petroleum Engineering, Xi’an Shiyou University, Xi’an 710065, China

Received:2025-03-25 Revised:2025-05-16 Online:2026-01-01 Published:2026-01-23

Abstract

Abstract:

In order to quantitatively evaluate the initial gas production contribution rate of each fracturing section of the fractured horizontal well in a strong heterogeneous gas reservoir, taking Permian He1 member gas reservoir in Xinzhao block of Dongsheng Gasfield in Ordos Basin as an example, based on reservoir geological engineering parameters, fracture characteristics, and gas production profile testing analysis, a new method for segmented production splitting of“fracture-controlled reserves”that integrated geological engineering factors was proposed. The results show that:（1）The characteristics of hydraulic fractures in Permian He1 member gas reservoir in Xinzhao block of Dongsheng Gasfield are controlled by geology and engineering. With the same construction parameters, better physical properties correspond to shorter hydraulic fractures half-length. Under the same geological conditions, larger construction displacement and greater net liquid inflow into the ground lead to longer fracture half-length, and more perforation clusters lead to shorter the fracture half-length. The ratio of half length to width of hydraulic fracture in different types of reservoirs in the same area is consistent.（2）The output of each horizontal fracturing section is significantly affected by geological engineering factors,and sections with good physical properties, good gas-bearing, and large-scale fracturing construction achieve greater post fracturing production capacity.（3）Taking into account geological engineering factors, it was clarified that the transformed “fracture-controlled reserves” have a linear relationship with the initial production capacity of each fracturing section of the horizontal well in the strong heterogeneous gas reservoir, with a correlation coefficient of 0.997, indicating that the larger fracture-controlled reserves lead to high proportion of production capacity in each fracturing section. By comparing the splitting method of “fracture-controlled reserves” with the gas production profile testing results, it was found that the relative error of splitting gas production in each section of ClassⅠand ClassⅡreservoirs is within 12.00%.

Key words: strong heterogeneous gas reservoir, hydraulic fracture, gas production profile, fracture-controlled reserves, splitting production, He1 member, Permian, Dongsheng Gasfield, Ordos Basin

CLC Number:

TE157.1

XUN Xiaoquan, LI Hongtao, LI Changping, YANG Fan, LIU Xiong. A new method for splitting the production of fractured horizontal wells in strong heterogeneous gas reservoirs:Taking Permian He1 member gas reservoir in Dongsheng Gasfield of Ordos Basin as an example[J].Lithologic Reservoirs, 2026, 38(1): 191-200.

Figures/Tables 13

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岩性	储层类型	物性		岩石力学（动态）		地应力		脆性指数	综合评价
岩性	储层类型	孔隙度/%	渗透率/mD	泊松比	杨氏模量/GPa	最小主应力/MPa	最大主应力/MPa	脆性指数	综合评价
砂岩	Ⅰ类	≥10.0	≥1.00	0.18	39.0	62.4	79.6	81	好
	Ⅱ类	5.0~10.0	0.15~1.00	0.19	47.8	62.6	80.3	79	较好
	Ⅲ类	< 5.0	< 0.15	0.22	51.2	64.2	81.9	78	差
泥岩	—	—	—	0.30	34.8	69.3	91.1	25	非储层

主控因素			监测结果
射孔簇数	储层类型	入地净液量/m³	裂缝波及长度/m	波及宽度/m	裂缝半长/m	百方压裂液裂缝半长/m	裂缝半长与波及宽度比值
单簇	Ⅰ类	829.0	305	25	153	18.4	6.1
单簇	Ⅲ类	780.0	338	29	169	21.6	5.8
单簇	Ⅲ类	761.0	328	28	164	21.5	5.9
单簇	Ⅲ类	799.0	348	29	174	21.7	6.0
单簇	Ⅰ类	829.0	305	25	153	18.4	—
两簇	Ⅰ类	805.0	228	51	114	14.2	—
三簇	Ⅰ类	952.0	190	71	95	9.9	—

压裂段	储层类型	射孔簇数	储层厚度/m	自然伽马/API	孔隙度/%	含气饱和度/%	施工排量/ （m³·min^-1）	入地净液量/ m³	加砂量/m³	产气量/ （m³·d^-1）	贡献占比/%
第1段	Ⅲ类	单簇	26.0	74	3.9	33.9	8.0	664.0	60.6	0	0
第2段	Ⅰ类	两簇	25.7	75	10.2	50.5	10.0	833.0	85.3	5 424	8.54
第3段	Ⅱ类	两簇	25.4	72	6.3	42.0	10.0	866.0	90.4	3 210	5.06
第4段	Ⅰ类	两簇	25.1	85	13.3	60.5	10.0	734.0	69.0	12 257	19.30
第5段	Ⅰ类	三簇	24.8	59	16.5	66.9	11.0	1 117.0	110.5	24 356	38.35
第6段	Ⅲ类	单簇	24.5	85	3.6	32.8	8.0	650.0	68.0	0	0
第7段	Ⅲ类	单簇	24.2	73	3.8	33.5	8.0	635.0	57.0	0	0
第8段	Ⅱ类	两簇	23.9	89	6.0	40.2	10.0	933.0	97.0	2 207	3.48
第9段	Ⅰ类	两簇	23.6	51	16.2	66.3	10.0	832.0	93.2	16 049	25.27
合计										63 503	100.00

压裂段	射孔簇数	储层类型	缝半长/m	储层缝高/m	波及宽度/m	缝控体积/10⁴ m³	缝控储量/10⁴ m³	缝控储量占比/%	劈分产量/（m³·d^-1）	产剖测试产量/（m³·d^-1）	相对误差/%
第1段	单簇	Ⅲ类	170	26.0	28	12.93	38.72	2.65	1 680	0	—
第2段	两簇	Ⅰ类	101	25.7	48	13.04	136.89	9.35	5 940	5 424	-9.51
第3段	两簇	Ⅱ类	98	25.4	52	13.55	80.96	5.53	3 513	3 210	-9.45
第4段	两簇	Ⅰ类	102	25.1	53	14.20	257.98	17.63	11 194	12 257	8.67
第5段	三簇	Ⅰ类	89	24.8	87	20.10	500.51	34.20	21 718	24 356	10.83
第6段	单簇	Ⅲ类	170	24.5	28	12.17	32.41	2.21	1 406	0	—
第7段	单簇	Ⅲ类	170	24.2	28	12.03	34.57	2.36	1 500	0	—
第8段	两簇	Ⅱ类	92	23.6	45	10.23	55.68	3.81	2 416	2 207	-9.47
第9段	两簇	Ⅰ类	102	23.3	54	13.43	325.72	22.26	14 134	16 049	11.93
合计						121.68	1 463.44	100.00	63 503	63 503

A new method for splitting the production of fractured horizontal wells in strong heterogeneous gas reservoirs:Taking Permian He1 member gas reservoir in Dongsheng Gasfield of Ordos Basin as an example

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