1

                                                                    EXHIBIT 23.1

                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS

As independent public accountants, we hereby consent to the incorporation of
our report included in this Form 10-K, into the Company's previously filed
registration statements on (1) the Company's 1995 Nonemployee Director Stock
Option Plan (File No. 333-40639), (2) the Company's 1995 Long Term Incentive
Plan (File No. 333-40641), and (3) the Company's Core Laboratories, Inc. Profit
Sharing Retirement Plan (File No. 33-80473).



                                       ARTHUR ANDERSEN LLP


Houston, Texas
March 9, 2000