The Horse Will Block Cbm Dimensional Seismic Exploration Research

As a kind of tremendous natural gas of unconventionality, coal bed gas has beentreated as the source of clean energy resource and chemical raw material, which hasbeen laid store by pertinent departments. For example, Liulin diggings and Jinchengdiggings of Shanxi Province have used coal bed gas for generating electricity andindigene life as a clean energy resource. In order to relieve China scarcity energyresources complexion in near future, Asia America Daning Energy Corporation Ltddecided to process large-scale prospecting and exploitation of coal bed gas inQinshui basin Mabi area of Shanxi province.The paper firstly introduces some basic geological theories including the genesisof formation, the movement mechanism, the exist condition and the enrichmentcondition of coal bed gas. Secondly, according to the trait of coal bed gas explorationin mountainous region,an effective seismic acquisition and processing system hasbeen suggested. After analyzing the excitation condition and the receiving condition,a 2-D observation system which excites in the middle and receives on both sideshas been designed and a conclusion that well depth and the amount of detonatorshould vary with the excitation layer.The total goal of the geological exploration: through 2-D seismic exploration, findout the depth, thickness, territorial variation rule;Find out the depth and thicknessterritorial variation rule of the chief coal bed containing 2# and 3# coal bed of Shanxigroup, 9#/10# and 15# coal bed of Taiyuan group, in order to make sure that the coalbed gas parameter well is right and to reduce exploration risk. .In succession,describes the geology and the character of physical geography of the explorationregion;the observation system and experiment has been established for thepracticality instance in order to put across the program. The accumulate circs and thedepth of the chief coal bed have been described through data processing, and pointthat:① In this region, increasing excursion distance is good to control conformation,break surface reflection and contrast explain of conformation;②Surface wave is thechief interfere wave, which can be weaken by increasing excursion distance. In theend some advices have been lodged for the question on the occasion of produceprocess.