综合物探技术在河套盆地深层油气勘探中的先导性应用：以临河坳陷为例

索孝东; 张锐锋; 石东阳; 杨俊; 杨战军; 张宇飞; 李燕丽; 王泽丹

doi:10.3799/dqkx.2022.465

Volume 48 Issue 2

Feb. 2023

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Article Navigation > Earth Science > 2023 > 48(2): 749-763

Suo Xiaodong, Zhang Ruifeng, Shi Dongyang, Yang Jun, Yang Zhanjun, Zhang Yufei, Li Yanli, Wang Zedan, 2023. Application of Comprehensive Geophysical Prospecting Technology in Deep Oil and Gas Exploration in Hetao Basin: Taking Linhe Depression as an Example. Earth Science, 48(2): 749-763. doi: 10.3799/dqkx.2022.465

Citation:

Suo Xiaodong, Zhang Ruifeng, Shi Dongyang, Yang Jun, Yang Zhanjun, Zhang Yufei, Li Yanli, Wang Zedan, 2023. Application of Comprehensive Geophysical Prospecting Technology in Deep Oil and Gas Exploration in Hetao Basin: Taking Linhe Depression as an Example. Earth Science, 48(2): 749-763. doi: 10.3799/dqkx.2022.465

Citation:

Suo Xiaodong, Zhang Ruifeng, Shi Dongyang, Yang Jun, Yang Zhanjun, Zhang Yufei, Li Yanli, Wang Zedan, 2023. Application of Comprehensive Geophysical Prospecting Technology in Deep Oil and Gas Exploration in Hetao Basin: Taking Linhe Depression as an Example. Earth Science, 48(2): 749-763. doi: 10.3799/dqkx.2022.465

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Application of Comprehensive Geophysical Prospecting Technology in Deep Oil and Gas Exploration in Hetao Basin: Taking Linhe Depression as an Example

doi: 10.3799/dqkx.2022.465

1.
BGP Inc., CNPC, Zhuozhou 072751, China
2.
Huabei Oilfield Company, PetroChina, Renqiu 062550, Chian
3.
CNLC Logging Technology Research Institue, Beijing 100085, China

Received Date: 2022-12-11
Publish Date: 2023-02-25

Abstract

Abstract

The Hetao Basin has a low degree of exploration and the favorable exploration strata are deeply buried. No breakthroughs have been achieved in more than 40 years. In order to achieve rapid breakthroughs in oil and gas exploration in Hetao Basin, high⁃precision gravity and time⁃frequency electromagnetic exploration have been carried out as a whole. Aiming at the problems that the main hydrocarbon⁃generating areas in the basin are unclear and the structure is difficult to determine, a new technology for deep target gravity anomaly extraction based on loose constrained multi⁃interface inversion based on finite well and seismic data and gravity forward stripping based on basement background density methodis applied.After these work, the geological structure of Linhe depression is re⁃recognized and the distribution of main hydrocarbon generating sags is quickly confirmed. It's pointed out that the Naoxi deep sub⁃sag of Bayannur sag in the north of the depression is the most favorable hydrocarbon generating area. The newly discovered favorable exploration targets for near source oil and gas, such as the central Xinglong faulted horst type buried hill drape structural belt and the nose shaped buried hill drape structural belt on the east wing of Jixi high, which are distributed around the Yellow River fault sub⁃sag and Naoxi deep sub⁃sag have led to targeted, rapid and efficient seismic deployment and drilling. Aiming at the problems of unclear reservoir target and difficult determination of breakthrough well location, time⁃frequency electromagnetic exploration supporting technologies such as target layer targeted acquisition based on well seismic simulation, electric⁃magnetic⁃well⁃seismic joint constrained inversion to improve the resolution of deep exploration and the prediction accuracy of oil and gas reservoirs have been proposed and applied. The resolution of deep exploration and the prediction accuracy of oil and gas reservoirs are improved. Favorable target areas such as well JHZK2, well Jihua 2x and well Linhua 1x are quickly locked. It has played a key leading role in the efficient breakthrough of oil and gas exploration in Hetao Basin and has provided successful examples and technical methods for deep oil and gas exploration in similar complex areas and special basins.

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References(52)

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Application of Comprehensive Geophysical Prospecting Technology in Deep Oil and Gas Exploration in Hetao Basin: Taking Linhe Depression as an Example

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